Question

what is the ground state electron configuration and the bond order for N2+?

Answer 1

Answer – Given, the ion N₂⁺

Step 1) Ground state electronic configuration

We know, N has 7 atomic number and in the N₂⁺ there are 2 N and one of them has +1 charge

So, ground state electronic configuration for N₂⁺ is

N⁺ = 1s² 2s² 2p²

N = 1s² 2s² 2p³

Step 2) Bond order

According to MOT the both N are formed molecular orbital and the is shearing electron from both N in antibonding and bonding orbitals

The first 1s and 2 are full filled from both side , but in the last 2p one has 3 and one has 2 electrons so all electrons in the 2p orbitals in the bonding and we know formula

Bond order = ½ (number of bonding electrons – number of antibonding electrons )

                   = 5-0 /2

                   = 2.5

So bond order for N₂⁺ is 2.5